ImplicitD[eqn, y, x]
ImplicitD[f, eqn, y, x]
ImplicitD[f, {eqn1, …, eqnk}, {y1, …, yk}, x]
ImplicitD[f, eqns, ys, {x, n}]
ImplicitD[f, eqns, ys, x1, x2, …]
ImplicitD[f, eqns, ys, {x1, n1}, {x2, n2}, …]
ImplicitD[f, eqns, ys, {{x1, x2, …}}]
ImplicitD[f, eqns, ys, {array}]